Accession Number:

AD0628733

Title:

STUDIES IN RING EXPANSION,

Descriptive Note:

Corporate Author:

GLASGOW UNIV (SCOTLAND) DEPT OF CHEMISTRY

Personal Author(s):

• BUCHANAN,G. L.

Report Date:

1964-12-31

Pagination or Media Count:

35.0

Abstract:

In contrast to an enolizable dimedone derivative, the non-enolizable 2-methyl-2-2-benzoyl ethyl-dimedone was cyclised to 1-methyl-4-phenyl bicyclo3,3,1non-3-en -8.9-dione. The infrared spectrum of this and other non-enolizable beta-diketones shows a split carbonyl band. This phenomenon was investigated. A new cycloheptene synthesis previously reported was applied to the synthesis of a compound related to the alkaloid colchicine. Author

Descriptors:

• *POLYCYCLIC COMPOUNDS
• *KETONES
• SYNTHESIS(CHEMISTRY)
• CHEMICAL REACTIONS
• ESTERS
• INFRARED SPECTRA
• BAND SPECTRA
• ALKALOIDS

Subject Categories:

• Organic Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE